Ground source heat pump central air conditioner

Abstract

The utility model discloses a ground source heat pump central air conditioner which comprises two bases and a fan coil, an evaporator is installed between the two bases, and the top of the evaporator is fixedly connected with a compressor and a ground source heat pump main machine. And pipelines are fixedly arranged on the left sides of the evaporators, grounding pipes are arranged at the left ends of the pipelines, and the fan coil is installed on the indoor top. According to the ground source heat pump central air conditioner, when a butt joint block on a first flange plate is inserted into a butt joint groove in a second flange plate, a movable plate rotates and is inserted into a corresponding positioning groove, meanwhile, a limiting block is inserted into a corresponding limiting groove, the butt joint block is limited, and therefore installation of a grounding pipe and a pipeline can be conveniently and rapidly completed; the assembling time of the ground source heat pump central air conditioner is shortened, the first flange plate and the second flange plate can be protected through the arranged sleeve, it is avoided that the first flange plate and the second flange plate are corroded to affect the sealing performance of the butt-joint pipe and the pipeline, and then the heat exchange process of the ground source heat pump central air conditioner is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a ground source heat pump central air conditioning system. Background Technology

[0002] Ground source heat pump central air conditioning systems utilize solar and geothermal energy absorbed from shallow water sources (such as groundwater, rivers, and lakes) and soil sources on the Earth's surface. Through the heat pump principle, they achieve highly efficient and energy-saving central air conditioning systems that can provide both heating and cooling. Heat pumps are devices that transfer heat and cold using the Carnot cycle and reverse Carnot cycle principles; ground source heat pumps specifically refer to devices that can transfer heat or cold from underground soil to the desired location.

[0003] Before using existing ground source heat pump central air conditioning systems, the grounding pipe must first be lowered into a drilled hole. Then, workers use tools to connect one end of the grounding pipe to the pipe on the evaporator using a flange and multiple bolts. However, the installation method of the grounding pipe and the pipe is cumbersome, time-consuming, labor-intensive, and inconvenient to use. It also increases the assembly time of the ground source heat pump central air conditioning system. In addition, the flange at the connection point between the grounding pipe and the pipe is exposed to the outside environment for a long time, which is prone to corrosion, thereby affecting the sealing of the connection point between the grounding pipe and the pipe, resulting in a reduction in the heat exchange efficiency of the ground source heat pump central air conditioning system.

[0004] Therefore, we proposed that ground source heat pump central air conditioning can effectively solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a ground source heat pump central air conditioner to solve the problems mentioned in the background art, such as the cumbersome and time-consuming installation of the grounding pipe and pipeline in the existing ground source heat pump central air conditioner, which is inconvenient to use, increases the assembly time of the ground source heat pump central air conditioner, and the flange at the connection position of the grounding pipe and pipeline is exposed to the outside for a long time, which is easily corroded, thereby affecting the sealing of the connection position of the grounding pipe and pipeline, resulting in a reduction in the heat exchange efficiency of the ground source heat pump central air conditioner.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ground source heat pump central air conditioner, including a base and a fan coil unit, an evaporator is installed between the two bases, and a compressor and a ground source heat pump main unit are respectively fixedly connected to the top of the evaporator;

[0007] The left side of the evaporator is provided with a fixed pipe, and the left end of the pipe is provided with a grounding pipe. The fan coil unit is installed on the top of the room.

[0008] A connecting pipe is fixedly connected between the fan coil unit and the evaporator. A second flange is fixed to the left end of the pipe, and a mating groove is opened at an equal angle on the left end of the second flange. A first flange is fixedly connected to the right end of the grounding pipe, and a mating block is fixed at an equal angle on the right side of the first flange.

[0009] A limiting groove is provided on the side of one end of the docking block. A sleeve is fixedly fitted on the outer side of the second flange. A movable plate is hinged at equal angles on the left side of the sleeve, and a driven gear is fixedly fitted on the shaft end of the movable plate. A driving gear is rotatably connected to the left side of the inside of the sleeve through a shaft.

[0010] The sleeve is rotatably connected to a rotating rod, and the left end of the rotating rod is connected to the shaft end of the drive gear through a bevel gear set. A drive gear is fixedly sleeved on the outer side of the right end of the rotating rod.

[0011] The sleeve has a limit block set at equal angles on the right side, and the limit block has toothed blocks fixed at equal intervals on its side. The first flange has a positioning groove opened at equal angles on its left side.

[0012] Preferably, the driven gear and the driving gear are meshed, the movable plate is L-shaped, and the position of the movable plate corresponds one-to-one with the positioning groove.

[0013] Preferably, the limiting block is T-shaped, with its bottom extending into the interior of the second flange and its top extending out of the outer surface of the sleeve.

[0014] Preferably, the limiting block is slidably connected to the sleeve and the second flange, the driving gear is meshed with the multiple toothed blocks on the limiting block, and the positions of the limiting block and the limiting groove correspond one-to-one.

[0015] Preferably, a motor is installed on the left side of the fan coil unit, a filter screen is bolted on the front side of the fan coil unit, and a threaded rod is connected to the upper bearing inside the fan coil unit. A movable plate is sleeved on the outside of the threaded rod, and a cleaning brush is bolted to the front side of the movable plate.

[0016] Preferably, the left end of the threaded rod extends out of the left side of the fan coil unit, and the left end of the threaded rod is fixedly connected to the output end of the motor.

[0017] Preferably, the movable plate is slidably connected to the fan coil unit, and the brush part of the cleaning brush is in contact with the back of the filter screen.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This ground source heat pump central air conditioner adopts a novel structural design, the specific details of which are as follows:

[0019] (1) The mating block on the first flange is inserted into the mating groove on the second flange, and the grounding pipe and the pipeline are initially connected. At this time, the rack moves and drives the meshing drive gear to rotate, so that the drive gear drives the meshing driven gear to rotate, and drives the movable plate to rotate, so that it is inserted into the positioning groove, thereby improving the stability of the mating of the first flange and the second flange. The sleeve can protect the first flange and the second flange, and avoid corrosion that would affect the sealing of the mating pipe and the pipeline, thereby ensuring the heat exchange process of the ground source heat pump central air conditioning.

[0020] Furthermore, the drive gear uses a bevel gear set to drive the rotating rod to rotate, which causes the drive gear to rotate and drive the meshing limit block to move, thereby allowing the limit block to insert into the corresponding limit groove, which can limit the docking block and further improve the stability of the docking of the first flange and the second flange, thus facilitating the quick completion of the installation of the grounding pipe and pipeline, and reducing the assembly time of the ground source heat pump central air conditioning.

[0021] (2) In the heating state, the compressor does work on the refrigerant and reverses the flow direction of the refrigerant through the reversing valve. The heat in the ground water, groundwater or soil is absorbed by the underground grounding pipe. The heat in the grounding pipe is absorbed into the refrigerant through the evaporation of the refrigerant in the evaporator. Then the heat carried by the refrigerant is released into the room by the fan coil unit to heat the room in the form of hot air.

[0022] Furthermore, in cooling mode, the compressor inside the ground source heat pump unit performs work on the refrigerant, causing it to undergo a vapor-liquid conversion cycle. Through the evaporation of the refrigerant in the evaporator, the heat carried by the fan coil circulation is absorbed into the refrigerant, and then the heat carried by the refrigerant is transferred to groundwater, surface water or soil through the grounding pipe circulation. The room is then cooled by the fan coil unit in the form of cold air.

[0023] (3) The motor drives the threaded rod to rotate, which causes the moving plate to move the cleaning brush and clean the dust on the surface of the filter screen, so as to prevent the dust from clogging the filter screen and affecting the discharge of cold or hot air. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main cross-sectional structure of the fan coil unit of this utility model;

[0025] Figure 2 This is a schematic diagram of the main cross-sectional structure of the first and second flanges of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the fan coil unit of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the grounding pipe and pipeline of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the active gear, limiting block, and drive gear of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the threaded rod, movable plate, and filter screen of this utility model;

[0030] Figure 7 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0031] In the diagram: 1. Evaporator; 2. Base; 3. Compressor; 4. Ground source heat pump unit; 5. Fan coil unit; 6. Filter screen; 7. Connecting pipe; 8. Pipe; 9. Grounding pipe; 10. First flange; 11. Second flange; 12. Connecting block; 13. Connecting groove; 14. Sleeve; 15. Driven gear; 16. Movable plate; 17. Drive gear; 18. Rotating rod; 19. Drive gear; 20. Limiting block; 21. Rack; 22. Threaded rod; 23. Cleaning brush; 24. Moving plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-7 This utility model provides the following technical solution: a ground source heat pump central air conditioning system;

[0034] Example 1: To address the problems of cumbersome, time-consuming, and inconvenient installation of the grounding pipe 9 and pipe 8 in existing ground source heat pump central air conditioning systems, which also increases assembly time and exposes the flanges at the connection points to corrosion due to prolonged exposure, thus affecting the sealing and reducing heat exchange efficiency, the following solution is disclosed. Please refer to the following for details. Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7As shown, the device includes a base 2 and a fan coil unit 5. A connecting pipe 7 is fixedly connected between the fan coil unit 5 and the evaporator 1. A second flange 11 is fixed to the left end of the pipe 8, and a mating groove 13 is opened at an equal angle on the left end of the second flange 11. A first flange 10 is fixedly connected to the right end of the grounding pipe 9, and a mating block 12 is fixed at an equal angle on the right side of the first flange 10. A limit groove is opened on the side of one end of the mating block 12. A sleeve 14 is fixedly fitted on the outside of the second flange 11. A movable plate 16 is hinged at an equal angle on the left side of the sleeve 14. The driven gear 15 and the driving gear 17 are meshed. The movable plate 16 is L-shaped and corresponds one-to-one with the positioning groove. The driven gear 15 is fixedly fitted on the shaft end of the movable plate 16. The left side of the sleeve 14 is connected at an equal angle through the shaft rotation. A drive gear 17 is connected; a rotating rod 18 is rotatably connected inside the sleeve 14, and the left end of the rotating rod 18 is connected to the shaft end of the drive gear 17 through a bevel gear set. A drive gear 19 is fixedly sleeved on the outer side of the right end of the rotating rod 18; a limit block 20 is set at equal angles on the right side inside the sleeve 14. The limit block 20 is set in a "T" shape, and the bottom of the limit block 20 extends into the interior of the second flange 11, and the top of the limit block 20 extends out of the outer surface of the sleeve 14. Tooth blocks are fixed at equal intervals on the side of the limit block 20. A positioning groove is opened at equal angles on the left side of the first flange 10. The limit block 20 is slidably connected to the sleeve 14 and the second flange 11. The drive gear 19 is meshed with the multiple tooth blocks on the limit block 20. The positions of the limit block 20 and the limit groove correspond one-to-one.

[0035] The workers mate the first flange 10 on the grounding pipe 9 with the second flange 11 on the pipe 8, so that the mating block 12 is inserted into the mating groove 13, thus initially completing the connection between the grounding pipe 9 and the pipe 8. At this time, the rack 21 moves and drives the meshing drive gear 17 to rotate, causing the drive gear 17 to drive the meshing driven gear 15 to rotate, and driving the movable plate 16 to rotate, so that it is inserted into the positioning groove, thereby improving the stability of the connection between the first flange 10 and the second flange 11. At the same time, the drive gear 17 uses the bevel gear set to drive the rotating rod 18 to rotate, so that the drive... The rotating gear 19 drives the meshing limiting block 20 to move, thereby inserting the limiting block 20 into the corresponding limiting groove, which can limit the docking block 12, further improving the stability of the docking of the first flange 10 and the second flange 11. This facilitates the quick installation of the grounding pipe 9 and the pipe 8, and reduces the assembly time of the ground source heat pump central air conditioner. Then, the sleeve 14 can be used to protect the first flange 10 and the second flange 11, preventing corrosion from affecting the sealing of the grounding pipe 9 and the pipe 8, thereby ensuring the heat exchange process of the ground source heat pump central air conditioner.

[0036] Example 2: Unlike Example 1, the cool or warm air blown out by the fan coil unit 5 in this example is gentler than that of a regular air conditioner, making it both healthy and comfortable. See details... Figures 1-4 As shown, an evaporator 1 is installed between two bases 2, and a compressor 3 and a ground source heat pump unit 4 are fixedly connected to the top of the evaporator 1 respectively; pipes 8 are fixedly opened on the left side of the evaporator 1, and a grounding pipe 9 is provided at the left end of the pipes 8; the fan coil unit 5 is installed on the top of the room.

[0037] In heating mode, compressor 3 performs work on the refrigerant and reverses the refrigerant flow direction through a reversing valve. The refrigerant is circulated through the grounding pipe 9, absorbing heat from surface water, groundwater, or soil. Through the evaporation of the refrigerant in evaporator 1, the heat circulating in grounding pipe 9 is absorbed into the refrigerant. Then, the heat carried by the refrigerant is released into the room through the fan coil unit 5, providing room heating in the form of hot air. In cooling mode, compressor 3 in the ground source heat pump unit 4 performs work on the refrigerant, causing it to undergo a vapor-liquid conversion cycle. Through the evaporation of the refrigerant in evaporator 1, the heat carried by the fan coil unit 5 is absorbed into the refrigerant. Then, the heat carried by the refrigerant is transferred to groundwater, surface water, or soil through the grounding pipe 9, providing room cooling in the form of cold air through the fan coil unit 5.

[0038] Example 3: Unlike Example 2, this example utilizes the movement of cleaning brush 23 to clean the dust on the surface of filter screen 6, ensuring the discharge of both hot and cold air. See details... Figure 1 , Figure 3 ,and Figure 6 As shown, a motor is installed on the left side of the fan coil unit 5, a filter screen 6 is bolted on the front side of the fan coil unit 5, and a threaded rod 22 is connected to the upper bearing inside the fan coil unit 5. The left end of the threaded rod 22 extends out of the left side of the fan coil unit 5 and is fixedly connected to the output end of the motor. A movable plate 24 is sleeved on the outside of the threaded rod 22. A cleaning brush 23 is bolted to the front side of the movable plate 24. The movable plate 24 and the fan coil unit 5 are slidably connected. The brush part of the cleaning brush 23 is in contact with the back of the filter screen 6.

[0039] After the local source heat pump central air conditioner has been used for a long time, start the motor. The motor drives the threaded rod 22 to rotate, which causes the moving plate 24 to move the cleaning brush 23 and clean the dust on the surface of the filter screen 6, so as to prevent the dust from clogging the filter screen 6 and affecting the discharge of cold or hot air.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ground source heat pump central air conditioner, comprising a base (2) and a fan coil unit (5), wherein an evaporator (1) is installed between the two bases (2), and a compressor (3) and a ground source heat pump host (4) are respectively fixedly connected to the top of the evaporator (1). The evaporator (1) has a fixed pipe (8) on its left side, and a grounding pipe (9) is provided at the left end of the pipe (8). The fan coil unit (5) is installed on the top of the room. Its features are, A connecting pipe (7) is fixedly connected between the fan coil unit (5) and the evaporator (1). A second flange (11) is fixed to the left end of the pipe (8), and a mating groove (13) is opened at the left end of the second flange (11) at equal angles. A first flange (10) is fixedly connected to the right end of the grounding pipe (9), and a mating block (12) is fixed at the right side of the first flange (10) at equal angles. A limiting groove is provided on one side of the docking block (12). A sleeve (14) is fixedly fitted on the outer side of the second flange (11). A movable plate (16) is hinged at equal angles on the left side of the sleeve (14), and a driven gear (15) is fixedly fitted on the shaft end of the movable plate (16). A driving gear (17) is rotatably connected to the left side of the sleeve (14) at equal angles through a shaft. The sleeve (14) is rotatably connected to a rotating rod (18), and the left end of the rotating rod (18) is connected to the shaft end of the drive gear (17) through a bevel gear set. A drive gear (19) is fixedly sleeved on the outer side of the right end of the rotating rod (18). The sleeve (14) has a limit block (20) at equal angles on the right side, and the limit block (20) has toothed blocks fixed at equal intervals on its side. The first flange (10) has a positioning groove at equal angles on its left side.

2. A ground source heat pump central air conditioning system according to claim 1, characterized in that: The driven gear (15) and the driving gear (17) are meshed together. The movable plate (16) is arranged in an "L" shape, and the position of the movable plate (16) corresponds one-to-one with the position of the positioning groove.

3. A ground source heat pump central air conditioning system according to claim 1, characterized in that: The limiting block (20) is arranged in a "T" shape, with the bottom of the limiting block (20) extending into the interior of the second flange (11) and the top of the limiting block (20) extending out of the outer surface of the sleeve (14).

4. A ground source heat pump central air conditioning system according to claim 1, characterized in that: The limiting block (20) is slidably connected to the sleeve (14) and the second flange (11). The drive gear (19) is meshed with multiple tooth blocks on the limiting block (20). The positions of the limiting block (20) and the limiting groove correspond one-to-one.

5. A ground source heat pump central air conditioning system according to claim 1, characterized in that: A motor is installed on the left side of the fan coil unit (5), a filter screen (6) is bolted on the front side of the fan coil unit (5), and a threaded rod (22) is connected to the upper bearing inside the fan coil unit (5), and a movable plate (24) is sleeved on the outside of the threaded rod (22), and a cleaning brush (23) is bolted on the front side of the movable plate (24).

6. A ground source heat pump central air conditioning system according to claim 5, characterized in that: The left end of the threaded rod (22) extends out of the left side of the fan coil unit (5), and the left end of the threaded rod (22) is fixedly connected to the output end of the motor.

7. A ground source heat pump central air conditioning system according to claim 5, characterized in that: The movable plate (24) is slidably connected to the fan coil unit (5), and the brush part of the cleaning brush (23) is in contact with the back of the filter screen (6).

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